Pacific Northwest blueberry growers must identify and control a number of bacterial and fungal diseases in order to ensure the highest yields. Fortunately, only a few of the diseases that occur on highbush blueberry in this region cause significant losses when left unchecked.
Jay W. Pscheidt, Jerry Weiland |
Mar 2015 |
Article
Excessive summer irrigation of oak and madrone trees may promote fungal diseases such as the oak root fungus (aka armillaria root disease) and crown rot.
Christmas trees planted in unirrigated sites depend on the weather for survival. A research trial set out to find factors that would help seedlings survive during drought years. Results were mixed.
Judy Kowalski, Chal Landgren |
Jan 2020 |
Article
Credit: Oregon Forest Resources Institute (Cropped from original)
Getting tree seedlings into the ground is simple: green side up, brown side down. The most important work comes beforehand with proper care and choosing a site that has lots of sunshine, good drainage and room to grow.
In the aftermath of disastrous wildfire seasons, it is harder than ever to find seedlings and workers for reforestation efforts. But there's help out there. Here's a look at what's available for reforestation efforts.
Describes key identification features, life cycle, and pest status of filbertworm, filbert weevil, filbert aphid, and hazelnut aphid. Includes color photos.
Vaughn Walton, Ute Chambers, Amy J. Dreves, Denny Bruck, Jeff L. Olsen |
Dec 2007 |
Extension Catalog publicationPeer reviewed (Orange level)
This publication provides a glossary of botanical terms related to hazelnut pollination and describes the flower and nut development process, pollination, and related issues.
Learn how to control insects, weeds and disease during each stage of hazelnut growth. View the app version View diseases, pests and products by crop stage on a web-based app. Try the app
Nik Wiman, Jay W. Pscheidt, Marcelo Moretti |
Apr 2023 |
Extension Catalog publicationPeer reviewed (Orange level)